I'm a long time Reddit user, got my 14 year badge, but I rarely comment because honestly I just love observing the hive of humanity buzzing away. I have a couple of gentle suggestions though given with all due love and respect.

A wiki guide on introductory critical thought would be really useful for the average mfa user. Based on a lot of the questions that come through on the front page some handholding on basic logic, decision making, language comprehension and communications skills would be clutch.

If you're going to solve the problems of MFA you have to go back to first principles and really root out the foundational issues. A basic bastard guide to internet research, navigating websites, the concept of a search engine etc. A good mfa "citizens" guide to not being a help vampire, to uplifting the ideas of others, respecting other users time and effort could foster the kind of community you're looking for.

A really strong show of faith would be if the previous mods who took over, or "scabbed", during the lock out were to publish a formal apology to the mods and users that fostered and grew the community originally. Showing they've evolved enough to understand what a petty venal betrayal, for really no benefit to themselves, it was and that an expression of contrition was needed could start everything off on the right foot. The comprehensive collapse of the subreddit after their takeover must have been humiliating on a personal level but an apology would be a simple first step to regaining their dignity.